of "starting point" begins right now. >>> he can hardly speak but terrorsuspectdzhokhartsarnaevistalking or at least communicating, big new developments this morning in the boston marathon bombing investigation. cnn's jake tapper has learned that tsarnaev is communicating with investigators, and claims that he and his brother pulled off last week's bombing of the marathon and also that their motivation seems to be that of jihadists. cnn's chief washington correspondent and anchor of "the lead" jake tapper is with us this morning. and jake, what are your sources telling you about these communications. >> u.s. government source tells me that in these preliminary interviews with dzhokhar tsarnaev, and he underlines they're preliminary, all the information that dzhokhar is giving needs to be checked out, that investigators are not taking his word for it, but what he is saying is that first of all, there were no foreign groups involved in the attacks. second, he's saying that there is an online component to how these brothers were radicalized. they watched videos online. they got information

seedzhokhartsarnaevjustafter the murder of an m.i.t. police officer. >> first the headline from the suspect dzhokhar tsarnaev, we acted alone. a u.s. government source quotes the surviving suspect saying the older brother was the master mind and they had no international ties to terror groups. he also says the men were motivated by radical islam and the jihadist goal of waging a holy war. they learned to make their bombs from readily available instructions on the internet. deborah has the latest from new york. >> wolf, we can tell you investigators are painting a much fuller picture of the parents and the life this tamerlan tsarnaev was living. his pull here in the united states and his life over in the russian caucasus. what we can tell you this morning is that the m.i.t. officer that was shot to death did not radio into dispatch to request a description of the suspect and he did not alert dispatch he was responding to the two men who apparently came up to him totally unaware. he was shot four to five times according to a source. it took at least nearly 13 minutes to actually f

to do it with thenames.dzhokhartsarnaevtellingauthorities how and why they planned the attack. >> good morning. dzhokhar tsarnaev remains in serious condition here but now he is facing serious charges as well. the use of a weapon of mass destruction and malicious destruction of property resulting in death. he was arraigned from his hospital bed before a federal magistrate who determine he was alert, mentally competent and lucid. and now we know he has begun to communicate. he was able to nod during this hearing and he said one word -- "no" -- when asked if he could afford a lawyer. court papers line out the time saying tsarnaev was caught in the area before the bombing 11 minutes before and was seen fiddling with his cell phone shortly before the blast. tsarnaev is communicating with authorities revealing the internet provided a lot of information on this attack and there was no foreign help. sources tell abc that tsarnaev claims they had no direct financing from governments or rogue groups -- or rogue groups overseas, and that the younger brother may not have known about this

, andrew. we expect there could be criminal chargesagainstdzhokhartsarnaevtoday.chillingly after the bombing a week with ago today, he and his brother tamerlan appeared to resume their normal lives. friends say he was at dartmouth, work withing out at the gym, talking about the bombing. and they are still in disbelief. >> it's hard top comprehend someone could go doing normal college kid stuff to bombing a marathon. >> and that about the older brother, tamerlan, 26 years old? he apparently talked to his parents in russia after the bombing and said everything was okay. he he went back to russia last year and was not interviewed afterwards. that has some on capitol hill wondering how did the intelligent agencies miss this? >> the fact that we could not track him as to be fixed. it's people like this that you don't want to let out of your site. this was a mistake. i don't know if our laws are in sufficient or the fbi failed but we're at war with radical islamists and we need to up our game. >> on "squawk box" last hour, he said the the whole thing this doesn't need is more interfere